Valve



May 8, 1945- f J. D. MATTIMQRE 2,375,674

VALVE v original Filed- Aug. 13, 1942, 2 sheets-snapt 2 I4 102 I6 n [02@9.5. N 4JOM fwm HI ATTORNEY Patented May 8, 1945` r OFFICE VALVE ifJohn D. Mattimore, Louisville,` Ky., assignor` to I Walworth PatentsInc., Boston, Mass., a corporation of Massachusetts Original applicationAugust 13, 1942, Serial No.`

, 454,632. Divided and thisapplication 1943, Serial No; 490,605

I 3 Claims.

`This invention relates to Avalvesand more particularly to largecapacity valves for controlling iluids under pressure and extremely hightemper'- atures and to the method of making such valves.

Thisapplication is a `division of my copending application Serial No.L154,632, filed August 13, 1942.

while providing adequate strength and minimum heat loss. n

Another object of the invention is to secure high resistance t injuriouseffects `of the high temperature fluids on the valve structure. Anotherobject yof the invention is to render parts exposed directly to the hightemperature fluids to be replaced when disintegrated or worn withoutreconstructing or rebuilding of the entire valve structure.

Another objectof the invention is `to facilitate the manufacture ofvalves capable of handling I large volumes of high temperature iluid.

Other advantages will become apparent from the following descriptiontaken `in connection,

`of manufacture, and

` Fig.` V is a section of a detail.`

4lteferring more particularly to thedrawings, the valve comprises atubular shell II) of wrought steel having both ends reduced to a sizecommensurate `with `the outer diameter of a lined pipe line I2 withinwhich `the valve is adapted to be installed. `The `opposite ends of theshell I Il may `carry flanges `I4 and I 6 secured thereto by welding andby meansof which the valve may be connected in the pipe line. It willbe` understood that other conventional methods of con nectingthe valvein the pipe line may be adopted, including weldingthe `shell I directlyinto the line.4 The shell Ill is provided with a lining IB of heatresistant cement which extends completely around the'innersurface of theshell except at lpoints Where structural parts ofthe valve mechanismproject therethrough as will herein- One object of the invention'is toreduce the weight and the costof manufacturing the valve" (ci.25J-157.1)

retaining member 2li provided with flanges 22 at opposite ends thereofwhich extend along the terminal ends of the lining I8 and are secured bywelding to the terminal ends of the shell Ill.

The retaining member 20`deneg a flow passage through the valve having aninlet `2li thereof and an outlet 26 at the, other. The inlet 24 is of`larger diameter than the bore of the linedpipe line I2 and isprovidedwith a tubularvalve seat member having a bore of substantiallythe same `diameter as the inner diameter of the lined pipe line l2. Thevalve seat member 28, preferably made of heat resisting alloy steel,` tsclosely within the inlet 24 `and is provided with an annular flange 3l).at its outer end which extends beyond the outer periphery of the shellI0 and is provided with an annular tongue 32 extending laterally beyondthe surfaces ofthe ange for engagement with suitable grooves 34 formedinthe flange I4 and `in the complementary flange carried vby the pipeline.

Theinnerend of the -valve seat member 28 is provided withwa reducedthreaded` portion 36 spaced from the retaining member 20 andadaptedforengagementwith a threaded annular portion38 formedonpne end ofa hollow guide member `designated generally by the reference numeral 40.heat `resisting alloy steel, is provided Witha `closed at one` end end4I of streamlined form and is spaced from member 23. A I pairofwdiametrically opposite after be described. Thelining I8 is retainedin position in the shell IIJ by means of a tubular the retainingmember'ZIl toform an annular flow area in the flow passage beyond thevalve seat arcuate slots 42 are formed in the guide member 40 adjacentthe annular-portion 38 of the guide member, thereby providing oppositelydisposed ports affording communication between the inlet 24 `and theannular flow areadened by the spaced arrangement ofthe guide member 4I)and the retaining member 2B. The streamlined end 4I of the guide memberis `supported by a plurality of rectangular projections 44 whichextendfrom the exteriorof the shell I0 through thelining I8 andretaining member 20` into engagement with the periphery ofthe guidemember lill adjacent the streamlined endI. In this instance,'four suchprojections 44 are shown but ,it` will` `be understood that anydesirednumber may `be provided.l The projections 44 may be secured to the shellI ll by weldingand in addition may be welded to the retaining "memberZI! to prevent leakage from the flow passage. A 1 A valve member 46 isslidably mountedin the guide member 40 and is provided with a head Theguide member 40, alsomade of 48 which cooperates with a seat 50 formedon the inner end of the valve-seat member 28 to control flow of fluidthrough the ports 42. The valve member 46 is hollow and has an internalprojection 52 extending axially from the head 48 into the bore thereof.Communication with the interior of the hollow valve member 46 isafforded by the provision of a pair of spaced openings 54 locateddiametrically opposite each other in the wall of the valve member.

ber 40 a plurality of openings 56 may be provided in the streamlined end4| to afford communication between the interior of the guide member 40and the flow passage.

The operating means for reciprocating the valve member 46 into and outof engagement with its seat 50 may comprise, in this instance, a valvestem constructed of sectional form for a purpose y to be describedhereinafter. One portion 58 0f the valve stem is carried wholly withinthe .guide member 40 and carries a cam element 60 intermediate its endsfor engagement with the projection 52 on the interior of the valveelement 46. The portion 58 is maintained in position at' one end by abushing 62 which extends from the tubular member 40 into the interior`of the valve member 46 and is provided with a head 64 which seatsWithin a suitable counter-sunk opening 66 formed in` theguide member 40.end of the portion ,58 is supported in a bearing cap'68 which is similarto the bushing 62 but has the head end 'l0 closed to support the endofthe portion y58.

The other or exterior portion l2 of the valve `stem projects through theshell and guide member 40 and is connected to the portion 58.by aseparable form of coupling. In this instance, a non-circular projection'|4 is formed on the end ofthe exterior portion 'l2 and engages with acomplementary non-circular opening formed in the end of the portion 58.The exterior portion 12 of the valve stem is rotatably mounted in abonnet 'I6 having a reduced end 1l `projecting through the shell I0 andabutting the head 64 of bushing 62. The bonnet 16 carries a yoke 'i8 atits outer end which serves to support the valve operating mechanism 80with which the valve stem 'l2 operatively engages. The bonnet T6 may bewelded to the shell |0 aro-und the shoulder 8| formed at the reduced endll and similar sealing means may be used at the junction with theretainer 20. The yoke 18 is provided with projections 82 extending fromopposite sides thereof and carrying bolts 84 engaging with a suitablepacking gland 85. The packing gland is adapted t@ compress packing 88around the stem 12 when pressure is applied to the gland by means of thenuts 90.

The bearing cap is supported in position in the guide member 48 by ahollow plug 82 which extends through the shell I0 into abuttingengagement with the bearing cap. The inner end of the plug 92 may beslotted as at 94 to provide entrance. for fluid from the flow passageinto the plug which may drain from the plug by removal of i the screw 86attached thereto.

l0 having the flanges |4 and I6 secured ,theretol is first provided withdiametrically opposite openings 88 of key-hole form located inthercentral portion thereof. A second pair of openings |00 of rectangularform` are also formed in the shell I0 perpendicular to the key-holeshaped openings 08.

In order to prevent l w entrapment of fluid within the hollow guide mem-The opposite p ae'aem Wooden plugs |02 of the form shown in Fig. V areutilized to close the openings 98 while wooden plugs |04 of rectangularform are utilized to close the openings |00. The plugs |02 and |04 aredriven into the shell |0 to a depth equal to the thickness of the liningI8 and sufficient insulating material in the form of high temperaturecement to cover the central portion of the shell I0 up the pointsdesignatedv in broken lines |06 is then installed. A commerciallyavailable insulating material is shaped in the form of segments whichcan be readily pushed into place around the wooden plugs |00 and |02 andtrimmed with a hack-saw where required. The joints around the woodenplugs may be completed by inserting the necessary quantity' of hightemperature cement. When the central portion of the shell |0 has beenlined, the opposite ends beyond the broken lines |06 lin Fig. III may belined by molding a sufficient quantity of high temperature cement to theshape and thickness required, Preferably the flanges |4 and 6 projectslightly beyond the terminal ends of the shell |'0 and its lining toaccommodate the flanged ends of the retaining member 20 which is nowinstalled. The retaining member 20 may be formed of a tube of lightsheet metal, preferably of heat resisting alloy steel, andmay have oneend provided with a flange 22 of a diameter equal to the inside diameterof the flange |,6 to whichv it is `secured by welding. The retainingmember`20 is then rolled out to conform with the inside contour of thelining I8 and the opposite end is flanged and welded to the end flange|4. The wooden plugs |0| and |04 may then be withdrawn and slotsconforming to the shape of the openings 68 and 00 may be formed in theretaining member 20. The shell I0 is now ready for insertion of thebonnet 16 and its related projection 44 in one of the openings |02 andfor the insertion of the drain plug 92 and its related projection 44 onthe opposite side. The rectangular openings |00 may then receive theother pair of rectangular projections 44 and all of these parts may besealed on the interior kby welding to the retaining member 20 when inposition. If required,v additional high temperature cement may then beforced between the bonnet '16, projection 44 and the shell l0 as Well asaround plug 82 andthe other portions which project through the shell.|0. The nal operation is to weld the bonnet 16, plug 92 and theprojections 44 to the shell |0 on the exterior.v

The assembly of the parts of the valve structure is facilitated by theprovision of the sectional form of valve stem. The guide member 40containing the valve member 46 may be inserted in the body from theinlet end and the valve seat member n28 threadedly engaged therewith.The exterior portion l2 of the valve stem is then inserted through thebonnetinto engagementwithl the valve stem portion 58 and thesuper-structure, comprising the valve operating mechanism 80, and thepacking arrangement, can be placed in position. Dismantling of thevalveis equally simple and merely requires that the upper section l2 of thevalve stern be withdrawn suinciently far to permit the disengagement ofthe projection 14 from they valve stem section58 whereupon the shell 40and its associated parts can be Withdrawn with the valve seat member 28from the inlet end 24.

When the valve is connected in a pipe line, the rotation of the valvestem 12 by the rotating mechanism will serve to operate the valve stemportion 58 through the medium of the non-circular projection 'I4 causingthe cam' element to actuate the valve member 46 toward and away from itsseat within the flow passage. The passage of fluid from Iche pipe lineat the inlet end to that atzthe outlet end is obstructed to a minimuml:for the operative parts of the valve, As the tubular shell `Ill may beseveral `feet in diameter for` handling large `volumes of uid, it `couldnot be i l constructed of steel capable of withstanding such elevatedtemperatures without considerable expense. Consequently, in thisinvention ,theshell ,Y

Il) is` constructed of ordinarycarbon steel and is i protected by thelining of heat resistant cement.

Moreover, as the lining is of substantial thickness the heat of thefluid passingthrough the valve is not dissipated and the heat losses arecomparatively small.

It Will be understood that many `changes may be made in the details ofconstruction, arrangement of parts and materials used which are shownand described herein for'illustrative pur poses andthe invention is notto be limited to the form disclosed but is to be accorded the full scopeof the appended claims.

I claim:

1. The method of making valves comprisinglining a tubular member withinsulating material,

inserting atubular retaining member adjacent the l 4 inner surface ofsaid lining, flangingthe end of said retaining member around saidlining, securing said end to said tubular member, and rolling saidretaining member into close engagement with said lining. l

2. The method of making'valves comprising cutd ting perforations atdiametrically opposite points through a tubular member, sealing saidperforations with plugs, lining said tubular memberwith insulatingmaterial, inserting a'tubular retaining member adjacentthe inner surfaceof said lining, i

Ilanging the end of said retaining member around said lining, securingsaid end to said tubular member,` rolling said retaining member intoclose ensagement with said lining, and withdrawing said plugs. Y i

3. The method of making valves comprising cutting perforations atdiametrically opposite points through a tubular member, sealing saidperforations with plugs, lining said tubular member with insulatingmaterial, inserting a tubular retaining member adjacent the innersurface of said lining, iianging the end of said retaining member aroundsaid lining, securing said end to said tubular me`m ber, rolling saidretaining member into close engagement with said lining, and perforating`said retaining member to coincide with the perforamember and lining.

tions in said tubular l JOHN D. MATTIMORE.

